pxa2xx_spi_probe allocates struct driver_data and null_dma_buf
at same time via spi_alloc_master(), but then calculates
null_dma_buf pointer incorrectly, and it causes memory corruption
later if DMA usage is enabled.
Signed-off-by: Vasily Khoruzhick <anars...@gmail.com>
---
drivers/spi/pxa2xx_spi.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/spi/pxa2xx_spi.c b/drivers/spi/pxa2xx_spi.c
index dc25bee..ef38fbf 100644
--- a/drivers/spi/pxa2xx_spi.c
+++ b/drivers/spi/pxa2xx_spi.c
@@ -1569,7 +1569,7 @@ static int __devinit pxa2xx_spi_probe(struct
platform_device *pdev)
master->transfer = transfer;
drv_data->ssp_type = ssp->type;
- drv_data->null_dma_buf = (u32 *)ALIGN((u32)(drv_data +
+ drv_data->null_dma_buf = (u32 *)ALIGN(((u32)drv_data +
sizeof(struct driver_data)), 8);
drv_data->ioaddr = ssp->mmio_base;
--
1.7.5.rc3
------------------------------------------------------------------------------
All of the data generated in your IT infrastructure is seriously valuable.
Why? It contains a definitive record of application performance, security
threats, fraudulent activity, and more. Splunk takes this data and makes
sense of it. IT sense. And common sense.
http://p.sf.net/sfu/splunk-d2d-c2
_______________________________________________
spi-devel-general mailing list
spi-devel-general@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/spi-devel-general
